Windows XP - Microsoft Windows
Get downloads, security updates, and information for Windows XP.
http://windows.microsoft.com/en-US/windows/products/windows-xp

Support for Windows XP
Help and support for Microsoft Windows XP. Links to customer service and technical solutions, downloads, service packs, and answers to top issues.
http://support.microsoft.com/ph/1173

Windows XP downloads - Microsoft Windows
Get Windows XP downloads, including Windows XP Service Pack 3, Internet Explorer 8, and PowerToys, and learn how to upgrade to Windows 7.
http://windows.microsoft.com/en-US/windows/downloads/windows-xp

Windows XP - Wikipedia, the free encyclopedia
Windows XP is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops and media centers. First released ...
http://en.wikipedia.org/wiki/Windows_XP

Microsoft Windows
The official website for the Microsoft Windows operating system. Explore Windows info, get downloads, and find the latest PCs for Windows.
http://windows.microsoft.com/en-US/windows/home

How to obtain the latest Windows XP service pack
Describes the Windows XP service packs along with the fixes that are included in the service packs.
http://support.microsoft.com/kb/322389

How to obtain Windows XP Setup disks for a floppy boot installation
Explains how to download Windows XP Setup boot disks.
http://support.microsoft.com/kb/310994

How to back up and restore the registry in Windows XP
Explains how to back up the registry in case something goes wrong when you edit the registry and you must restore the registry.
http://support.microsoft.com/kb/322756

Windows XP Help & How-to - Microsoft Windows
Get help with Windows XP—troubleshooting tips, help articles, and more.
http://windows.microsoft.com/en-US/windows/help/windows-xp

Download: Windows XP Service Pack 3 Network Installation Package ...
Overview. Windows XP Service Pack 3 (SP3) includes all previously released updates for the operating system. This update also includes a small number of new ...
http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=24